Let Sm be the set of symmetric bilinear forms on an m-dimensional vector space over GF(q), where q is a power of two. A subset Y of Sm is called an (m, d)-set if the difference of...
We show that the average size of subsets of [n] forming an intersecting Sperner family of cardinality not less than (n-1 k-1 ) is at least k provided that k 6 n=2
Christian Bey, Konrad Engel, Gyula O. H. Katona, U...
Weierstrass representation is a classical parameterization of minimal surfaces. However, two functions should be specified to construct the parametric form in Weierestrass represe...
We consider the four families of recognizable, synchronous, deterministic rational and rational subsets of a direct product of free monoids. They form a strict hierarchy and we in...
Olivier Carton, Christian Choffrut, Serge Grigorie...
A convenient form of necessary and sufficient conditions of viability for differential games with linear dynamics is proposed. These conditions are utilized to construct maximal vi...